multiple color palettes

Have an easy way to add color palettes. Yeah, you have the black and white default, and yeah, its easy to change those to whatever color you want, but what if you want to save the two colors you have and make two new squares of color, that you can switch to easily on your screen. Just make me a small plus sign at the top right corner that I can click on to get two new squares to perfect, and then I won't be limited by black and white or blue and green.